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Turning the Laser On
Place the laser on a fl at level surface. Slide the Power/
Transport Lock switch
to the right to unlock/turn
F 2
ON the laser.
Each laser line is powered on by pressing its button on
the keypad (Figure
). Pressing the button again
F 3
turns the laser line off. The laser lines can be powered
one at a time or all at the same time.
Laser
Buttons
DW089LR/LG
Horizontal laser line
(Figure
F 4
Side vertical laser line
(Figure
F 5
Front vertical laser line
(Figure
F 6
DW0811LR/LG
Horizontal laser line
(Figure
F 4
Side vertical laser line
(Figure
F 5
When the laser is not in use, slide the Power/Transport
Lock switch to the left in the OFF/Locked position. If
the Power/Transport Lock switch is not placed in the
lock position, all 4 LEDs will continuously fl ash on the
Battery Meter.
Checking Laser Accuracy
The laser tools are sealed and calibrated at the factory.
It is recommended that you perform an accuracy check
prior to using the laser for the fi rst time (in case the
laser was exposed to extreme temperatures) and then
regularly to ensure the accuracy of your work. When
performing any of the accuracy checks listed in this
manual, follow these guidelines:
• Use the largest area/distance possible, closest to the
operating distance. The greater the area/distance,
the easier to measure the accuracy of the laser.
• Place the laser on a smooth, fl at, stable surface that
is level in both directions.
• Mark the center of the laser beam.
Horizontal Beam - Scan Direction
Checking the horizontal scan calibration of the laser
requires two walls 30' (9m) apart. It is important to
conduct a calibration check using a distance no shorter
than the distance of the applications for which the tool
will be used.
Place the laser against the end of the wall on a
1.
smooth, fl at, stable surface that is level in both
directions (Figure
)
Move the Power/Transport Lock switch to the right
2.
to turn the laser ON.
)
Press
to turn on the horizontal beam.
3.
)
At least 30' (9m) apart along the laser beam, mark
4.
and
.
a
b
)
Turn the laser 180º.
5.
Adjust the height of the laser so the center of the
6.
)
beam is aligned with
Directly above or below
7.
beam (Figure
K 3
Measure the vertical distance between
8.
If your measurement is greater than the Allowable
9.
Distance Between
corresponding Distance Between Walls in the
following table, the laser must be serviced at an
authorized service center.
Distance
Between Walls
30' (9m)
40' (12m)
50' (15m)
E
).
K 1
(Figure
).
a
K 2
, mark
along the laser
c
b
).
and
.
b
c
and
for the
b
c
Allowable Distance
Between
and
b
c
1/4" (6.0mm)
5/16" (8.0mm)
13/32" (10.0mm)
15
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